1 why didn't they help him ?
->Why wasn't he helped by them ?
2 How many games has the team played ?
-> how many games have been played by the team ?
3 Where do people speak english ?
-> Where is english spoken ?
4 who are they keeping in the kitchen ?
-> who are being kept in the kitchen ?
5 What books are people reading this year?
-> What books are being read this year ?
6 How did the police find the lost man ?
-> How was the lost man found by the police ?
7 how long have they waited for the doctor ?
-> How long has the doctor been waited for?
8 What time can the boys hand in their papers?
→ What time can the boy’s papers be handed in?
9 Who lends you this book?
→ By whom is this book lent to you?
chúc bạn học tốt !!! cho mk xin hay nhất ạ ^^